When were the earliest savages discovered?

Qu Yuan recorded "Savage" for the first time.

"Savage", together with UFO, Loch Ness Monster and Bermuda Triangle, is called the four natural mysteries in the world. Many people in the world have witnessed this long-haired humanoid animal, which can walk upright on two feet. Mr. Xu Hankui said that China first recorded the "savage". As early as 2300 years ago during the Warring States Period, Qu Yuan described it in detail in his poem "Nine Songs Shan Gui". Wang Fuzhi, a scholar in Qing Dynasty, thinks that Shan Gui written by Qu Yuan is a savage. This statement was affirmed by Professor Liu Min Zhuang from the Biology Department of Shanghai Normal University. Qu Yuan was born in the southern foot of Shennongding, the main peak of Shennongjia primeval forest, where the "savage" appears most frequently, so it makes sense for him to mention "savage" in his poems. It was compiled from the Jiajing period of the Ming Dynasty, and continued to books such as Fangxian Annals and Yunyang Annals of Hubei in 1935, and even recorded savages clearly.